3 ms·
> So, just for Google alone that change could save on the order of 100GB of traffic per day So say $150 dollars/mo? Or 0.00002% of their profit/year. Come on
by 0xABADC0DA 15y ago
> So, just for Google alone that change could save on the order of 100GB of traffic per day
So say $150 dollars/mo? Or 0.00002% of their profit/year. Come on.
> I don't think the paper provides statistics on how much a prefix dictionary saves over not having one at all.
The paper compares plain, deflate, and deflate + prefix dictionary. Prefix is only a benefit on the first request and response, adding up to 121 on average in their test.
- JoshTriplett 15y ago> The paper compares plain, deflate, and deflate + prefix dictionary. Prefix is only a benefit on the first request and response, adding up to 121 on average in their test. As far as I can tell, it seems to compare plain, deflate with SPDY's current prefix dictionary, and deflate with the paper's proposed prefix dictionary.
- 0xABADC0DA 15y agoYou are correct, the paper does not compare to compression with a null prefix. In haste I read it wrong, since it was not too far off from calculations I had done previously in a reddit discussion where I found ~100 bytes saved using the prefix dictionary. Thanks for being persistent and I'll see if I can rerun their data using a null prefix before the next Spdy thread, but I doubt it will show more than 200 bytes total savings per connection, which doesn't change anything IMO.